Markdown Version | Session Recording

Session Date/Time: 06 Nov 2024 09:30

quic

Summary

This meeting covered updates on adopted working group items (multipath and Q-log), potential new work (QUIC address discovery), and a presentation on flexicast QUIC. Key discussions focused on the readiness of the multipath draft for working group last call, the JSON-Sec serialization format for Q-log, and the value of adding address discovery functionality to QUIC.

Key Discussion Points

• Reliable Reset and Act Frequency: Discussion around implementation status, interoperability testing, and deployment considerations for both. WebTransport and MOQ's dependencies on reliable reset were highlighted.
• Multipath Draft:
  • Semantic and mechanical updates from draft-10 to draft-11.
  • Hekkestone report for draft-11 showed progress with multiple implementations.
  • Discussions on open issues: CID exhaustion, error codes for path abandonment, PTO handling, and path migration vs. new path creation.
  • Lars Eggert raised concerns about the draft's scope, distinguishing between establishing/maintaining paths versus providing comprehensive multipath guidance.
  • Need for editorial pass to clarify normative vs. informative sections and potentially restructure the document.
• Q-log:
  • Updates on timestamp handling and schema simplification.
  • Discussion on adding a field to stream/datagram data moved events to signal blocking reasons (congestion control, flow control).
  • Bike shed discussion around JSON-Sec format: pros, cons, alternatives, and potential migration paths.
• QUIC Address Discovery:
  • Marten Seemann presented a draft for address discovery, intended for P2P use cases including NAT traversal.
  • Discussion on whether the working group should adopt this draft, with concerns raised about having a solution without a clear problem/use case.
• Flexicast QUIC:
  • Luis presented a draft for flexible multicast inside QUIC, leveraging multipath QUIC.
  • Highlighted unicast and flexicast path usage with unicast acknowledgments.
  • Implementation results showing potential scalability improvements.

Decisions and Action Items

• Reliable Reset: Follow up on scheduling virtual interop testing, possibly waiting for the Bangkok hackathon.
• Multipath Draft:
  • Editors team to coordinate on editorial pass and address open issues.
  • Authors to provide a proposal for restructuring the document.
  • Encourage those who haven't read a recent draft to do so and collaborate.
  • Chairs to have a chat with the editors team.
  • Consider an interim meeting.
• Q-log:
  • Editors team to address remaining minor issues and aim for working group last call by the end of the year.
  • Address the issue with the JSON-Sec format and choose one and only one format.
  • Clarify how to use JSON-Sec format for different audiences (human vs. machine).
• QUIC Address Discovery:
  • Defer any decisions about adoption to future meetings.
  • Authors to provide use case on the mailing list.

Next Steps

• Multipath Draft: Address editorial feedback, propose document restructuring, and plan potentially interim meeting.
• Q-log: Resolve format selection and prepare for working group last call.
• QUIC Address Discovery: Authors to present use cases on the mailing list and the quick mailing list for consideration.
• Deep Space Buff will be held after lunch tomorrow.